Rigol DS6000 Series User Manual page 146

RIGOL
4. Phase Measurement Setting
Specify the source A and source B in the measurement items "Phase A→B "
and "Phase A→B ".
Press MEAS  Meas Setting  Type  "Phase" and then press Source A
and Source B to set the two channel sources (CH1-CH4) of the phase
measurement respectively.
5. Threshold Measurement Setting
Specify the vertical level (in percentage) being measured in the analog channel.
Measurement of all the time, delay and phase parameters will be influenced by
this setting.
Press MEAS  Meas Setting  Type  "Threshold" and then:
Press Max and use

Reducing the maximum value to the current "Mid" will automatically reduce
the middle value to keep it lower than the maximum value. The default is
90% and the range available is from 7% to 95%.
Press Mid and use

value is limited by the settings of "Max" and "Min". The default is 50% and
the range available is from 6% to 94%.
Press Min and use

Increasing the minimum value to the current "Mid" will automatically
increase the middle value to keep it higher than the minimum value. The
default is 10% and the range available is from 5% to 93%.
6-22
to set the maximum value of the measurement.
to set the middle value of measurement. The middle
to set the minimum value of the measurement.
6 To Make Measurements
DS6000 User's Guide